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Finding the Fourth Proportional to 504,487.11, 695,468.86 and 396,870.31

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Solution

The fourth proportional to 504,487.11, 695,468.86 and 396,870.31 is: 547,111.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,487.11 : 695,468.86 = 396,870.31 : x
  2. Step 2: Convert to fraction form
    504,487.11/695,468.86 = 396,870.31/x
  3. Step 3: Cross multiply
    504,487.11x = 695,468.86 × 396,870.31
  4. Step 4: Simplify right side
    504,487.11x = 276,010,942,063.55
  5. Step 5: Solve for x
    x = 276,010,942,063.55/504,487.11
  6. Step 6: Final answer
    x = 547,111.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.